similar to: [LLVMdev] Mips -> DLX Modifications as Target

So I thought I'd try to use the documentation on llvm backends to try to create a DLX backend. I think I've got most of the stuff for the .td files done but I've got some problems. * Do I need to represent the PC in my XXXRegisterInfo.td file; the branch instruction effects it but you can directly access it ... I'm thinking not. * In my Instruction subclasses (in

in llvm-3.6.2.src 1. when I put this around one of my instruction definitions in my target "InstrInfo.td" file, let TwoOperandAliasConstraint = "$dst = $rs1" in { } I do not see any TIED_TO in the generated GenInstrInfo.inc file for the OperandInfo used by the instruction, the question is what am I doing wrong ? 2. I've noticed that TwoOperandAliasConstraint

dear all, i'am working on developing new llvm compiler backend for dlx processor. I finished writing the code and i'm trying to build it. After some errors that i fixed them, i have a one that i can't find a solution for it. I wish you help me to fix it and i will be grateful. Indeed, the compilation stop at level "[ 76%] Building DlxGenAsmMatcher.inc..." with no trace ..

Hi all, I'm trying to create a new backend for a processor, and I start with modifying the existing backends like MIPS and Microblaze. I have a problem when I try to add a register class in the Target's register description, it looks like this: def IGPRegs : RegisterClass<"MBlaze", [v8i16], 128, [PR0, PR1, PR2, PR3]>; // PR0 - PR3 are registers defined before I want to

Hi, While upgrading samba 4.4 to samba 4.10 I have detected taht with newer versions if you use bind-dlx config it seem that is not working by a permissions problems on new folder bind-dns on samba folder, If you change to 777 to this folder and named.conf then works, but is not secure... I have checked samba wiki and no information about this Any suggestion what could be the right

if I write: int z, x; ... z = (x >= k); -- where k is a constant The compiler always wants to translate this into: z = (x > (k-1)); In general this can often lead to better code (and it does for Mips 16 for sure), except at the boundary condition where k==-32768 Then it creates the literal -32769 which cannot be placed in a simple immediate field. That creates a lot of extra code for

Hi, generally, please don't send screenshots: Copy&paste of your terminal output is much easier and better to search for in the future... Without the source code, I think nobody will be able to help. You might be trying $ make VERBOSE=1 to see what's actually happening underneath. Maybe one command is returning a non-zero exit status? Cheers, Jonas Am 2018-01-31 11:53, schrieb

It's could be the ill-formed td file causing llvm-tablegen stuck there. You might have to double-check your td file. HTH, chenwj 2018-01-31 18:53 GMT+08:00 Ons Boutiti via llvm-dev <llvm-dev at lists.llvm.org >: > dear all, > i'am working on developing new llvm compiler backend for dlx > processor. I finished writing the code and i'm trying to build it. > After

Chris Lattner wrote: >>It is possible to write multi-instruction pattern, e.g. >>X86InstrSSE.td line 1911. But how are you defining HI16 and LO16? >>Sounds like you want to define them as SDNodeXform that returns upper >>and lower 16 bits respectively. Take a look at PSxLDQ_imm in >>X86InstrSSE.td as an example. > > > Another good example is the PPC

On Jan 9, 2007, at 5:23 PM, Scott Michel wrote: > Chris Lattner wrote: >>> It is possible to write multi-instruction pattern, e.g. >>> X86InstrSSE.td line 1911. But how are you defining HI16 and LO16? >>> Sounds like you want to define them as SDNodeXform that returns >>> upper >>> and lower 16 bits respectively. Take a look at PSxLDQ_imm in

YOu have to look for which DAG fragments are not being matched. Then you can create patterns for those using alternate sequences. When you disablea given instruction, don't just disable it, but also look at what pattern it was matching. Then create a patten for that using remaining instructions or in some cases you might have to call a library function, as in the case of floating

Appreciate any suggestions regarding how to fit an unbalanced panel data to a Tobit model using R functions. I am trying to analyze how real estate capital expenditures (CapEx) are affected by market conditions using a panel Tobit model. The CapEx is either positive or 0, so it is censored. The data are unbalanced panel, including the CapEx of about 5000 properties over about 40 quarters, with the

Björn Pettersson A <bjorn.a.pettersson at ericsson.com> writes: > In the new monorepo UC1 may or may not be a parent to UL1. > We could actually have something like this: > > UL4->UC2->UL3->UL2->UL1->UL0->UC1 > > Our DL1 commit should preferably have UL1 as parent after > conversion > > UL4->UC2->UL3->UL2->UL1->UL0->UC1 >

On Tue, 9 Jan 2007, Evan Cheng wrote: >> - How does one deal with multiple instruction sequences in a pattern? >> To load a constant is a two instruction sequence, but both >> instructions only take two operands (assume that r3 is a 32-bit >> register): >> >> ilhu $3, 45 # r3 = (45 << 16) >> iohl $3, 5 # r3 |= 5

There can also be other “problems" like this one: http://reviews.llvm.org/D6946 <http://reviews.llvm.org/D6946> - Matthias > On Apr 20, 2015, at 1:44 PM, Tim Northover <t.p.northover at gmail.com> wrote: > >> The DAG combiner also performs the undefined shift -> undef though, so it >> should still be OK > > DAG combiner doesn't really run to

Thanks for your reply. We are trying to implement a simple Mips-based CPU with just for teaching purpose, so we delete some instructions which are not commonly used, thus the task won't be too hard for students. I am responsible for modifying the compiler so that the compiler won't emit unsupported instructions. In order to avoid "can not select" error, I am trying to expand

Hello, would it be possible to update config.sub and config.guess to the latest versions (or at least version from automake-1.13.1) in order to support new architectures based on the ARM 64 bit CPU? Patch: http://plautrba.fedorapeople.org/openssh/openssh-latest-config.sub-config.guess.patch Related Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=926284 Thanks, Petr

Signed-off-by: Scott Seago <sseago at redhat.com> --- AUTHORS | 17 ++++++ README | 10 +++ conf/ovirt-agent | 12 ++++ conf/ovirt-db-omatic | 12 ++++ conf/ovirt-host-browser | 12 ++++